package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrVO;
import com.atguigu.gulimall.product.vo.skuitem.SkuItemVO;
import com.atguigu.gulimall.product.vo.skuitem.SpuItemAttrGroupVO;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@Service
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        // select * from pms_attr_group where catelog_id = ? and (key的模糊查询)
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<>();
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((obj) -> obj.eq("attr_group_id", key).or().like("attr_group_name", key));
        }
        IPage<AttrGroupEntity> page;
        if (catelogId == 0) {
            page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
        } else {
            wrapper.eq("catelog_id", catelogId);
            page = this.page(
                    new Query<AttrGroupEntity>().getPage(params), wrapper);

        }
        return new PageUtils(page);
    }

    @Override
    public List<AttrGroupWithAttrVO> getAttrGroupWithAttrByCatelogId(Long catelogId) {
        // 1. 查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        // 2. 查询所有属性
        List<AttrGroupWithAttrVO> attrGroupWithAttrVOS = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrVO attrGroupWithAttrVO = new AttrGroupWithAttrVO();
            BeanUtils.copyProperties(group, attrGroupWithAttrVO);
            // 查询当前分组下的所有属性
            List<AttrEntity> attrs = attrService.getRelationAttr(attrGroupWithAttrVO.getAttrGroupId());
            attrGroupWithAttrVO.setAttrs(attrs);
            return attrGroupWithAttrVO;
        }).collect(Collectors.toList());
        return attrGroupWithAttrVOS;
    }

    @Override
    public List<SpuItemAttrGroupVO> getAttrGroupWithAttrBySpuId(Long spuId, Long catalogId) {
        // 1、查出当前spu对应的所有属性的分组信息以及当前分组下所有属性的值
        List<SpuItemAttrGroupVO> vos = this.baseMapper.getAttrGroupWithAttrBySpuId(spuId, catalogId);
        return vos;
    }
}